CN103823493A - Control device and control method of hydraulic drive fan thermal management system - Google Patents
Control device and control method of hydraulic drive fan thermal management system Download PDFInfo
- Publication number
- CN103823493A CN103823493A CN201410086590.4A CN201410086590A CN103823493A CN 103823493 A CN103823493 A CN 103823493A CN 201410086590 A CN201410086590 A CN 201410086590A CN 103823493 A CN103823493 A CN 103823493A
- Authority
- CN
- China
- Prior art keywords
- signal
- temperature sensor
- fan
- output
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of heat radiation, and discloses a control device and a control method of a hydraulic drive fan thermal management system. The device comprises a main control unit, a monitoring sensor, an input signal unit, an output signal unit, a man-machine interaction operation system, a flow rate regulating device, a driving device and a fan, wherein the monitoring sensor, the input signal unit and the man-machine interaction operation system are all connected with the input end of the main control unit; both the output signal unit and the flow rate regulating device are connected with the output end of the main control unit; the driving device is connected between the flow rate regulating device and the fan. The main control unit provided by the invention outputs a pulse modulation signal to the flow rate regulating device according to duty ratio, monitors the current output by the flow rate regulating device, changes the driving force of the driving device so as to regulate the rotation speed of the fan by changing the duty ratio of the pulse modulation signal of the flow rate regulating device, and has the advantage of regulating the rotation speed of the cooling fan by changing the driving force of the cooling fan.
Description
Technical field
The present invention relates to heat dissipation technology field, more particularly, particularly a kind of hydraulic drive fan heat management system control device and control method thereof that regulates cooling fan rotation speed by changing the driving force size of cooling fan.
Background technology
Vehicle and engineering machinery all can produce a large amount of heat in the process of work.Due to the variation of working environment and operating mode, also can there is corresponding variation in the heat producing, in order to keep the normal operation of equipment, conventionally adopt various refrigeratorys or heat interchanger, adopt cooling fan force cooling mode by dissipation of heat in environment, thereby each device is remained in the working range of normal temperature.Existing traditional cooling system, its cooling fan is normally arranged on engine, the change of rotation speed of the fan is to carry out respective change by the variation of engine speed, cooling effect is directly relevant to the rotating speed of engine, thereby occur that cooling system can not meet the heat exchange requirement of all operating modes of system, often make the engine of vehicle and engineering machinery, the various generation heats such as hydraulic work system, hydraulic drive system, pressure charging system also need cooling system equipment to produce overheated or supercooling phenomenon.Particularly, when under the condition of the large operation torque of low engine speed, because the rotating speed of cooling fan is slower, cooling effect is poor, and it is overheated just often to cause; When starting idling, environment temperature when lower, can cause again cold.The system that can not guarantee always works in best working temperature, causes life-span, increase energy consumption, the problems such as work efficiency that reduce of shortening system or parts.In addition, in the time that engine speed is higher, rotation speed of the fan is also higher, thereby the noise that causes fan to cause is excessive.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic drive fan heat management system control device that regulates cooling fan rotation speed by changing the driving force size of cooling fan.
Another object of the present invention is to provide a kind of control method of hydraulic drive fan heat management system control device.
In order to achieve the above object, the technical solution used in the present invention is as follows:
Hydraulic drive fan heat management system control device, comprise main control unit, monitoring sensor, input signal unit, output signal unit, man-machine interactive operation system, flow regulator, drive unit and fan, described monitoring sensor, input signal unit and man-machine interactive operation system are all connected with the input end of main control unit, described output signal unit is all connected with the output terminal of main control unit with flow regulator, and described drive unit is connected between flow regulator and fan; Described main control unit is pressed dutycycle output pulse width modulation signal to flow regulator, and flow regulator output current is monitored, and by changing the dutycycle of pulse-width signal of flow regulator, change the driving force of drive unit to regulate the rotating speed of fan.
Described monitoring sensor comprises engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor.
Described monitoring sensor comprise in engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor one, two or more.
Described input signal unit comprises forced refrigeration switching signal, plugged filter signal, engine rotational speed signal, motor rotary speed signal and air conditioner refrigerating switching signal.
Described output signal unit comprises trouble light, output control signal wire and slave module.
Described flow regulator is electronically controlled proportional valve, variable output pump variable valve, flowrate control valve and directional control valve.
Described flow regulator be in electronically controlled proportional valve, variable output pump variable valve, flowrate control valve and directional control valve one, two or more.
Described drive unit is that liquid drives motor or liquid drives generator.
Described man-machine interactive operation system is the transfer mechanism that input signal changes, the transfer mechanism that output signal changes, for the display unit showing and the operating unit formation of related data being set to input, man-machine interactive operation system comprises the equipment of hand-held equipment, locomotive operation platform, 3G radio data communication equipment, also can be miscellaneous equipment; And the interactive software system adopting is made up of professional software, wireless device or wired unit, the reception converting unit of PC or mobile phone terminal, and interactive software system comprises that mobile phone operation, computer operation are by the system of software mode.
The control method of hydraulic drive fan heat management system control device, it is as follows that it controls step:
(1), first adopt main control unit to carry out system testing, determine that whether system is normal; As normal in system, make fan reversion by flow regulator and drive unit, then enter forced refrigeration determining program; As system mistake, go to and close pulsed modulation PWM output call error handling procedure, send relevant error to man-machine interactive operation system, and point out relevant error point; Execute wrong processing after order, turn back to system testing flow process;
(2), entering in forced refrigeration determining program, if forced refrigeration input switch is forced refrigeration state, it is cooling fan rotation speed that the system running speed system of getting arranges maximum (top) speed;
If forced refrigeration input switch is not in forced refrigeration state, measure the temperature of engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor, temperature signal is carried out to AD conversion, and measuring-signal is judged;
If measuring-signal is wrong, it is cooling fan rotation speed that the system running speed system of getting arranges maximum (top) speed;
If measuring-signal is correct, the algorithm that is rotating speed according to temperature transition, obtain respectively the corresponding rotation speed of the fan of temperature value of engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor, and get maximal value as system running speed;
(3) performance, by system to sensor settings, the dutycycle of sensor of starting temperature value that optimum temperature value, alarm temperature value and idling dutycycle, minimum duty cycle, maximum duty cycle and the sensor of fan operation survey and carry out computing and draw, the maximal value in the dutycycle that fan pulse-width signal draws for associated multichannel Huo Yi road temperature sensor;
(4), according to system performance, export, according to tried to achieve dutycycle, main control unit, and is monitored flow regulator output current to flow regulator by dutycycle output pulse width modulation signal;
(5), change the dutycycle of the pulse-width signal of flow regulator by main control unit, change the driving force of drive unit, change accordingly with the rotating speed that drives fan, thereby cooling effect changes;
(6), by man-machine interactive operation system, optimal parameter is set, make system operate in optimum condition, and the state of real-time supervisory control system running and indicating fault.
In above output monitoring, if note abnormalities in monitor procedure (such as electric current exceedes maximal value, speed feedback is incorrect, temperature exceedes alarming value, flow regulator fault etc.), enter wrong treatment scheme, namely close PWM output, because flow regulator is that inverse proportion signal is effective, now drive unit is pressed maximum capacity drive fan, and the handling procedure of call error simultaneously.
In step (3), system computing show that the dutycycle of sensor is specially:
Cause the resistance change of sensor according to the temperature variation of monitoring sensor, and sensor supply voltage does not change, by I1(electric current)=U1(voltage)/R1(resistance), circuit causes curent change, electric current is coupled to output terminal by linear optical coupling, and output terminal is multiplied each other and calculated voltage (U2=I2*R2) by resistance and the variable-current of series connection;
Main control unit converts gathered AD value=(1024*U2)/U1 to according to the magnitude of voltage drawing;
AD value is obtained to corresponding optimum temperature value by looking into AD/T temperature characterisitic table, then obtain the deviation (T_) of optimum temperature value and current temperature value, this deviation was by every 5 seconds sue for peace (T_sum);
Output duty cycle=(P) * (T_)+(I) * (T_sum), wherein P is scale factor, I is integrating factor;
In the time that output duty cycle is less than the minimum duty cycle setting, by minimum duty cycle output, in the time that the dutycycle of output is greater than the maximum duty cycle setting, press maximum duty cycle output, and when pulse-width modulation PWM signal is when being multiple sensor control, its value is the maximal value in dutycycle in multichannel;
Finally the pulse-width modulation PWM signal of gained is outputed to flow regulator, flow regulator regulates the driving force of drive unit, changes accordingly with the rotating speed that drives fan.
The present invention is by gas, fluid temperature sensor, measure engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor, control signal and information are processed and exported to main control unit to sensor measurement signal or other input signal, control signal is a pulse-width signal PWM, under this signal, reach flow regulator, by changing the pulse-width signal dutycycle of flow regulator, thereby regulate the driving force of drive unit to regulate the rotating speed of fan.The present invention adopts the temperature of each heat eliminating medium and environment as signal input quantity, rotating speed to fan is controlled, rotation speed of the fan is directly monitored simultaneously, the temperature that can guarantee heat eliminating medium is controlled in optimum range, improve the operating efficiency of apparatus for work, the life-span of prolongation system or parts, reduction energy consumption, improved work efficiency, reduced the noise that fan causes.And control method of the present invention has stronger robustness, in the time the phenomenons such as fault occurs, and stalled fan, excess Temperature, rotation speed of the fan are undesired being detected, hard closing output pwm signal completely.And when regulating drive unit to block or when fault, main control unit directly output signal to regulating flowrate control valve in drive unit, guarantee that system is effective, have standby operation, have more by force, wider application, can regulate according to different environments for use, the different relevant on-line parameters of use vehicle, also there is stronger dirigibility simultaneously, can, according to different demands, carry out different combinations.
Compared with prior art, the invention has the advantages that: adopt the temperature of heat eliminating medium as signal input quantity, fan is carried out to rotating speed control, in the time that temperature is low, fan slow running, in the time that temperature is high, fan enters high-speed cruising state; Also the rotating speed of fan is directly monitored, when rotation speed of the fan, the rotating speed under duty ratio corresponding sets and system temperature be not when too high simultaneously, and main control unit automatically regulation output PWM value guarantees that system operates in optimum temperature range; Can also guarantee that the temperature of heat eliminating medium is in control optimum range, improve the operating efficiency of apparatus for work, the life-span of prolongation system or parts, reduction energy consumption, improve work efficiency, reduced the noise that fan causes, control device of the present invention and control method have stronger robustness, in the time fault being detected, main control unit is closed output and is regulated electronically controlled proportional valve in drive unit, open output and regulate flowrate control valve in drive unit, drive unit is moved by maximum drive ability drive fan, after fault is got rid of, can automatically make device enter normal operation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the frame diagram of hydraulic drive fan heat management system control device of the present invention.
Fig. 2 is the process flow diagram of hydraulic drive fan heat management system control method of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Consult shown in Fig. 1-Fig. 2, hydraulic drive fan heat management system control device provided by the invention, comprise main control unit, monitoring sensor, input signal unit, output signal unit, man-machine interactive operation system, flow regulator, drive unit and fan, described monitoring sensor, input signal unit and man-machine interactive operation system are all connected with the input end of main control unit, described output signal unit is all connected with the output terminal of main control unit with flow regulator, and described drive unit is connected between flow regulator and fan; Described main control unit is pressed dutycycle output pulse width modulation signal to flow regulator, and flow regulator output current is monitored, and by changing the dutycycle of pulse-width signal of flow regulator, change the driving force of drive unit to regulate the rotating speed of fan.
Performance that the present invention sets monitoring sensor by system, start temperature value that optimum temperature value, alarm temperature value and idling dutycycle, minimum duty cycle, maximum duty cycle and the sensor of fan operation survey and carry out computing and draw the corresponding dutycycle of monitoring sensor, the maximal value in the dutycycle that width modulation (PWM) signal draws for associated multichannel Huo Yi road temperature sensor.Concrete compute mode is: the resistance change that causes sensor according to the temperature variation of monitoring sensor, and sensor supply voltage does not change, by I1(electric current)=U1(voltage)/R1(resistance), circuit causes curent change, electric current is coupled to output terminal by linear optical coupling, and output terminal is multiplied each other and calculated voltage (U2=I2*R2) by resistance and the variable-current of series connection; Main control unit converts gathered AD value=(1024*U2)/U1 to according to the magnitude of voltage drawing; AD value is obtained to corresponding optimum temperature value by looking into AD/T temperature characterisitic table, then obtain the deviation (T_) of optimum temperature value and current temperature value, this deviation was by every 5 seconds sue for peace (T_sum); Output duty cycle=(P) * (T_)+(I) * (T_sum), wherein P is scale factor, I is integrating factor; In the time that output duty cycle is less than the minimum duty cycle setting, by minimum duty cycle output, in the time that the dutycycle of output is greater than the maximum duty cycle setting, press maximum duty cycle output, and when pulse-width modulation PWM signal is when being multiple sensor control, its value is the maximal value in dutycycle in multichannel; As while being single-sensor control, get its dutycycle.And the pulse-width modulation PWM signal of gained is outputed to flow regulator, flow regulator regulates drive unit driving force, reach the object that drive unit regulates rotation speed of the fan, and rotation speed of the fan feed back input is to main control unit, main control unit is according to temperature and the rotating speed of monitoring sensor contrast at present, as being greater than sensor temperature alarming value corresponding to monitor when monitoring sensor actuator temperature, main control unit directly enables the flowrate control valve in flow regulator entirely, makes drive unit export fan to by maximum drive ability.
Monitoring sensor of the present invention comprises other sensors such as engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor; And monitoring sensor can be in the sensor one, two or two with
Input signal of the present invention unit comprises forced refrigeration switching signal, plugged filter signal, engine rotational speed signal, motor rotary speed signal and air conditioner refrigerating switching signal.
Output signal of the present invention unit comprises trouble light, output control signal wire and slave module.
Flow regulator of the present invention is other valves such as electronically controlled proportional valve, variable output pump variable valve, flowrate control valve and directional control valve, and flow regulator can be in above-mentioned valve one, two or more.
Drive unit of the present invention is that liquid drives motor or liquid drives generator.
Man-machine interactive operation system of the present invention is by the transfer mechanism that input signal is changed, and the transfer mechanism that output signal is changed, for the display unit showing and the operating unit formation of related data being set to input.The operating process of man-machine interactive operation system is: the main control unit-display unit of transfer mechanism-input signal processing that input signal-input signal changes and data are set the operating unit-display unit-output signal of input and processed the transfer mechanism that main control unit-output signal changes, as preferably, the man-machine interactive operation system adopting can, for the equipment of hand-held equipment, locomotive operation platform, also can be miscellaneous equipment.
Interactive software system of the present invention is made up of the professional software of PC or mobile phone terminal, wireless or wired unit, reception, transmission converting unit.The operating process of interactive software system is: wired or wireless unit-reception converting unit-PC or mobile phone terminal professional software and PC or mobile phone terminal professional software-transmission converting unit-wired or wireless unit; As preferably, the interactive software system adopting comprises that mobile phone operation, computer operation are by the system of software mode, can be also other system.
By reference to the accompanying drawings 1 and Fig. 2 shown in, the control method of hydraulic drive fan heat management system control device provided by the invention, comprises the following steps:
(1), first adopt main control unit to carry out system testing, determine that whether system is normal; As normal in system, main control unit outputs signal to directional control valve and the flowrate control valve of flow regulator, make fan reversion by flow regulator and drive unit, and the module of required heat management is carried out to cleaning works, enter forced refrigeration determining program, the content of test mainly contains again: the mensuration certainly of a, main control unit itself; Whether the parameters of b, mensuration control or system is normal; C, read the data that exist in EEPROM; Whether d, speed probe, temperature sensor connect normally; Whether e, main control unit are connected normally with flow regulator; Whether f, other input/output port be normal etc.; As system mistake, go to and close pulsed modulation PWM output call error handling procedure, send relevant error to man-machine interactive operation system, and point out relevant error point; Execute wrong processing after order, turn back to system testing flow process;
(2), entering in forced refrigeration determining program, if forced refrigeration input switch is forced refrigeration state, it is cooling fan rotation speed that the system running speed system of getting arranges maximum (top) speed; If forced refrigeration input switch is not in forced refrigeration state, measure the temperature of engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor, temperature signal is carried out to AD conversion, and measuring-signal is judged; If measuring-signal is wrong, it is cooling fan rotation speed that the system running speed system of getting arranges maximum (top) speed; If measuring-signal is correct, the algorithm that is rotating speed according to temperature transition, obtain respectively the corresponding rotation speed of the fan of temperature value of engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor, and get maximal value as system running speed;
(3) performance, by system to sensor settings, the dutycycle of sensor of starting temperature value that optimum temperature value, alarm temperature value and idling dutycycle, minimum duty cycle, maximum duty cycle and the sensor of fan operation survey and carry out computing and draw, the maximal value in the dutycycle that fan pulse-width signal draws for associated multichannel Huo Yi road temperature sensor; Its concrete operational method is: the resistance change that causes sensor according to the temperature variation of monitoring sensor, and sensor supply voltage does not change, by I1(electric current)=U1(voltage)/R1(resistance), circuit causes curent change, electric current is coupled to output terminal by linear optical coupling, and output terminal is multiplied each other and calculated voltage (U2=I2*R2) by resistance and the variable-current of series connection; Main control unit converts gathered AD value=(1024*U2)/U1 to according to the magnitude of voltage drawing; AD value is obtained to corresponding optimum temperature value by looking into AD/T temperature characterisitic table, then obtain the deviation (T_) of optimum temperature value and current temperature value, this deviation was by every 5 seconds sue for peace (T_sum); Output duty cycle=(P) * (T_)+(I) * (T_sum), wherein P is scale factor, I is integrating factor; In the time that output duty cycle is less than the minimum duty cycle setting, by minimum duty cycle output, in the time that the dutycycle of output is greater than the maximum duty cycle setting, press maximum duty cycle output, and when pulse-width modulation PWM signal is when being multiple sensor control, its value is the maximal value in dutycycle in multichannel;
(4), according to system performance, export, according to tried to achieve dutycycle, main control unit, and is monitored flow regulator output current to flow regulator by dutycycle output pulse width modulation signal;
(5), change the dutycycle of the pulse-width signal of flow regulator by main control unit, change the driving force of drive unit, change accordingly with the rotating speed that drives fan, thereby cooling effect changes;
(6), by man-machine interactive operation system, optimal parameter is set, make system operate in optimum condition, and the state of real-time supervisory control system running and indicating fault.
In above output monitoring, if note abnormalities in monitor procedure (such as electric current exceedes maximal value, speed feedback is incorrect, temperature exceedes alarming value, flow regulator fault etc.), enter wrong treatment scheme, namely close PWM output, because flow regulator is that inverse proportion signal is effective, now drive unit is pressed maximum capacity drive fan, and the handling procedure of call error simultaneously.
Lower mask body introduction application on dozer by control device of the present invention.
On dozer, adopt hydraulic drive fan heat management system control device of the present invention, by the above corresponding control method, by changing the rotating speed of cooling fan, thereby change the air quantity by cooling system, thereby changed cooling effect, each cooling work medium is maintained in normal range.
In hydraulic drive fan heat management system control device, main control unit collects charge air cooler temperature, engine cooling water temperature and hydraulic fluid temperature and changes into AD value, obtains according to temperature/dutycycle corresponding relation of default the rotating speed that each sensor is corresponding; And get in three maximal value as cooling fan rotation speed.Once fan running speed is determined, according to the characteristic of system, adopts the definite rotation speed of the fan of calculating or experimental technique and by the relation of drive current, calculates and pulse-width signal corresponding to definite rotating speed; Main control unit assigns corresponding signal to flow regulator, flow regulator carries out driver, and electric current is monitored, and by rotation speed of the fan feed back input to main control unit, main control unit is according to temperature and the rotating speed of monitoring sensor contrast at present, as being greater than sensor temperature alarming value corresponding to monitor when monitoring sensor actuator temperature, main control unit directly enables the flowrate control valve in flow regulator entirely, makes drive unit export fan to by maximum drive ability.
By controlling the pwm signal dutycycle size of flow regulator, export drive unit to, i.e. regulation output driving force, thus regulate the rotating speed of fan, change the temperature of heat eliminating medium.
Although described by reference to the accompanying drawings embodiments of the present invention; but the patent owner can make various distortion or modification within the scope of the appended claims; as long as be no more than the described protection domain of claim of the present invention, all should be within protection scope of the present invention.
Claims (10)
1. hydraulic drive fan heat management system control device, it is characterized in that, comprise main control unit, monitoring sensor, input signal unit, output signal unit, man-machine interactive operation system, flow regulator, drive unit and fan, described monitoring sensor, input signal unit and man-machine interactive operation system are all connected with the input end of main control unit, described output signal unit is all connected with the output terminal of main control unit with flow regulator, and described drive unit is connected between flow regulator and fan; Described main control unit is pressed dutycycle output pulse width modulation signal to flow regulator, and flow regulator output current is monitored, and by changing the dutycycle of pulse-width signal of flow regulator, change the driving force of drive unit to regulate the rotating speed of fan.
2. hydraulic drive fan heat management system control device according to claim 1, it is characterized in that, described monitoring sensor comprises engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor.
3. hydraulic drive fan heat management system control device according to claim 1, it is characterized in that, described monitoring sensor comprise in engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor one, two or more.
4. hydraulic drive fan heat management system control device according to claim 1, it is characterized in that, described input signal unit comprises forced refrigeration switching signal, plugged filter signal, engine rotational speed signal, motor rotary speed signal and air conditioner refrigerating switching signal.
5. hydraulic drive fan heat management system control device according to claim 1, is characterized in that, described output signal unit comprises trouble light, output control signal wire and slave module.
6. hydraulic drive fan heat management system control device according to claim 1, is characterized in that, described flow regulator is electronically controlled proportional valve, variable output pump variable valve, flowrate control valve and directional control valve.
7. hydraulic drive fan heat management system control device according to claim 1, is characterized in that, described flow regulator be in electronically controlled proportional valve, variable output pump variable valve, flowrate control valve and directional control valve one, two or more.
8. hydraulic drive fan heat management system control device according to claim 1, is characterized in that, described drive unit is that liquid drives motor or liquid drives generator.
9. the control method of hydraulic drive fan heat management system control device, is characterized in that, it is as follows that it controls step:
(1), first adopt main control unit to carry out system testing, determine that whether system is normal; As normal in system, make fan reversion by flow regulator and drive unit, then enter forced refrigeration determining program; As system mistake, go to and close pulsed modulation PWM output call error handling procedure, send relevant error to man-machine interactive operation system, and point out relevant error point; Execute wrong processing after order, turn back to system testing flow process;
(2), entering in forced refrigeration determining program, if forced refrigeration input switch is forced refrigeration state, it is cooling fan rotation speed that the system running speed system of getting arranges maximum (top) speed;
If forced refrigeration input switch is not in forced refrigeration state, measure the temperature of engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor, temperature signal is carried out to AD conversion, and measuring-signal is judged;
If measuring-signal is wrong, it is cooling fan rotation speed that the system running speed system of getting arranges maximum (top) speed;
If measuring-signal is correct, the algorithm that is rotating speed according to temperature transition, obtain respectively the corresponding rotation speed of the fan of temperature value of engine coolant temperature sensor, charge air cooler temperature sensor, torque converter oil temperature sensor, hydraulic fluid temperature sensor and environment temperature sensor, and get maximal value as system running speed;
(3) performance, by system to sensor settings, the dutycycle of sensor of starting temperature value that optimum temperature value, alarm temperature value and idling dutycycle, minimum duty cycle, maximum duty cycle and the sensor of fan operation survey and carry out computing and draw, the maximal value in the dutycycle that fan pulse-width signal draws for associated multichannel Huo Yi road temperature sensor;
(4), according to system performance, export, according to tried to achieve dutycycle, main control unit, and is monitored flow regulator output current to flow regulator by dutycycle output pulse width modulation signal;
(5), change the dutycycle of the pulse-width signal of flow regulator by main control unit, change the driving force of drive unit, change accordingly with the rotating speed that drives fan, thereby cooling effect changes;
(6), by man-machine interactive operation system, optimal parameter is set, make system operate in optimum condition, and the state of real-time supervisory control system running and indicating fault.
10. the control method of hydraulic drive fan heat management system control device according to claim 9, is characterized in that, in step (3), system computing show that the dutycycle of sensor is specially:
Cause the resistance change of sensor according to the temperature variation of monitoring sensor, and sensor supply voltage does not change, by I1(electric current)=U1(voltage)/R1(resistance), circuit causes curent change, electric current is coupled to output terminal by linear optical coupling, and output terminal is multiplied each other and calculated voltage (U2=I2*R2) by resistance and the variable-current of series connection;
Main control unit converts gathered AD value=(1024*U2)/U1 to according to the magnitude of voltage drawing;
AD value is obtained to corresponding optimum temperature value by looking into AD/T temperature characterisitic table, then obtain the deviation (T_) of optimum temperature value and current temperature value, this deviation was by every 5 seconds sue for peace (T_sum);
Output duty cycle=(P) * (T_)+(I) * (T_sum), wherein P is scale factor, I is integrating factor;
In the time that output duty cycle is less than the minimum duty cycle setting, by minimum duty cycle output, in the time that the dutycycle of output is greater than the maximum duty cycle setting, press maximum duty cycle output, and when pulse-width modulation PWM signal is when being multiple sensor control, its value is the maximal value in dutycycle in multichannel;
Finally the pulse-width modulation PWM signal of gained is outputed to flow regulator, flow regulator regulates the driving force of drive unit, changes accordingly with the rotating speed that drives fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086590.4A CN103823493B (en) | 2014-03-10 | 2014-03-10 | The control method of hydraulic drive fan heat management system control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086590.4A CN103823493B (en) | 2014-03-10 | 2014-03-10 | The control method of hydraulic drive fan heat management system control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103823493A true CN103823493A (en) | 2014-05-28 |
| CN103823493B CN103823493B (en) | 2016-03-02 |
Family
ID=50758605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410086590.4A Active CN103823493B (en) | 2014-03-10 | 2014-03-10 | The control method of hydraulic drive fan heat management system control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103823493B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005971A (en) * | 2014-06-18 | 2014-08-27 | 青岛大学 | Intelligent ultra-low speed stepless speed regulating hydraulic energy-saving fan |
| CN104863685A (en) * | 2014-12-19 | 2015-08-26 | 北汽福田汽车股份有限公司 | Car electric fan control method and system |
| CN105156408A (en) * | 2015-08-21 | 2015-12-16 | 徐工集团工程机械股份有限公司科技分公司 | Loader fan driving hydraulic system and positive and negative rotation switching method |
| CN105952521A (en) * | 2016-06-22 | 2016-09-21 | 龙口中宇热管理系统科技有限公司 | Intelligent heat management system for engine and control method |
| CN111237034A (en) * | 2020-03-13 | 2020-06-05 | 广州大华德盛热管理科技股份有限公司 | Land tail gas cooling device and weapon equipment |
| CN115306530A (en) * | 2022-08-29 | 2022-11-08 | 徐州徐工挖掘机械有限公司 | Control method and system for independent heat dissipation system of series air conditioner condenser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005256642A (en) * | 2004-03-09 | 2005-09-22 | Toyota Motor Corp | Cooling control device for internal combustion engine |
| CN101216042A (en) * | 2008-01-04 | 2008-07-09 | 广东大华仁盛科技有限公司 | Cooling fan control device and method |
| CN101813019A (en) * | 2010-03-30 | 2010-08-25 | 广州大华德盛科技有限公司 | Control device and method thereof of heat management system of motor-driven fan |
| CN102913314A (en) * | 2012-11-09 | 2013-02-06 | 广州大华德盛热管理科技有限公司 | Intelligent control device and method for cooling system |
| CN204009609U (en) * | 2014-03-10 | 2014-12-10 | 广州大华德盛热管理科技有限公司 | Hydraulic drive fan heat management system control device |
-
2014
- 2014-03-10 CN CN201410086590.4A patent/CN103823493B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005256642A (en) * | 2004-03-09 | 2005-09-22 | Toyota Motor Corp | Cooling control device for internal combustion engine |
| CN101216042A (en) * | 2008-01-04 | 2008-07-09 | 广东大华仁盛科技有限公司 | Cooling fan control device and method |
| CN101813019A (en) * | 2010-03-30 | 2010-08-25 | 广州大华德盛科技有限公司 | Control device and method thereof of heat management system of motor-driven fan |
| CN102913314A (en) * | 2012-11-09 | 2013-02-06 | 广州大华德盛热管理科技有限公司 | Intelligent control device and method for cooling system |
| CN204009609U (en) * | 2014-03-10 | 2014-12-10 | 广州大华德盛热管理科技有限公司 | Hydraulic drive fan heat management system control device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005971A (en) * | 2014-06-18 | 2014-08-27 | 青岛大学 | Intelligent ultra-low speed stepless speed regulating hydraulic energy-saving fan |
| CN104863685A (en) * | 2014-12-19 | 2015-08-26 | 北汽福田汽车股份有限公司 | Car electric fan control method and system |
| CN104863685B (en) * | 2014-12-19 | 2018-02-23 | 北汽福田汽车股份有限公司 | A kind of Vehicular electric control method for fan and system |
| CN105156408A (en) * | 2015-08-21 | 2015-12-16 | 徐工集团工程机械股份有限公司科技分公司 | Loader fan driving hydraulic system and positive and negative rotation switching method |
| CN105952521A (en) * | 2016-06-22 | 2016-09-21 | 龙口中宇热管理系统科技有限公司 | Intelligent heat management system for engine and control method |
| CN105952521B (en) * | 2016-06-22 | 2018-10-30 | 龙口中宇热管理系统科技有限公司 | Engine intelligent heat management system and control method |
| CN111237034A (en) * | 2020-03-13 | 2020-06-05 | 广州大华德盛热管理科技股份有限公司 | Land tail gas cooling device and weapon equipment |
| CN115306530A (en) * | 2022-08-29 | 2022-11-08 | 徐州徐工挖掘机械有限公司 | Control method and system for independent heat dissipation system of series air conditioner condenser |
| CN115306530B (en) * | 2022-08-29 | 2024-03-01 | 徐州徐工挖掘机械有限公司 | Control method and system for independent heat dissipation system of tandem air conditioner condenser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103823493B (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103823493B (en) | The control method of hydraulic drive fan heat management system control device | |
| CN101813019B (en) | Control device and method thereof of heat management system of motor-driven fan | |
| CN204009609U (en) | Hydraulic drive fan heat management system control device | |
| CN101216042B (en) | Control method of cooling fan control device | |
| CN102322329B (en) | Intelligent control method of engine cooling fan for engineering machinery | |
| CN110094389B (en) | Energy-saving hydraulic station | |
| CN201569355U (en) | Efficient and energy-saving industrial circulating water control system | |
| CN107255347A (en) | A kind of cooler compressor operation power detecting method and air conditioner | |
| CN113110634A (en) | Semiconductor laser temperature control system, equipment and method | |
| CN103835820B (en) | Based on control method, device and system that rotary drilling rig engine moment of torsion is responded to | |
| CN107289811B (en) | Energy-saving automatic control system and method for evaporative cooling/condensing equipment | |
| CN104713605A (en) | Insufficient coolant flow fault diagnosis method for electric automobile cooling system | |
| CN103410719B (en) | A kind of volume electricity loads test-bed for pump device | |
| CN106444599A (en) | Permanent magnet speed regulator running monitoring method and system | |
| CN102913314A (en) | Intelligent control device and method for cooling system | |
| CN203373802U (en) | Excavator heat dissipation control system based on silicone oil clutch | |
| CN203081721U (en) | Water pump energy-saving system | |
| CN102705087B (en) | Engine heat management controller and online strategy configuration method | |
| CN201202669Y (en) | Hydraulic drive fan controller | |
| CN106253770A (en) | The control method of direct current generator and device | |
| CN104393817A (en) | Motor driving method and device, air-conditioner and electric appliance | |
| CN203733010U (en) | DSP microprocessor-based electric resistance furnace temperature automatic control device | |
| CN102946223B (en) | Auxiliary control method and device of temperature of vehicular brushless direct current motor | |
| CN212050761U (en) | Electronic frequency conversion descaling device with pressure measurement function | |
| CN203066168U (en) | Numerical control water supply device for testing gas water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 510540 Guangzhou, Baiyun District, Guangdong Sheng Road, No. 1, No. 5, building 4, building 1701, room 3 Patentee after: GUANGZHOU DAHUA DESHENG THERMAL MANAGEMENT SCIENCE AND TECHNOLOGY CO., LTD. Address before: 510540 Guangdong Province, Guangzhou Baiyun District Zhuliao town gold Xiang Liang Tian Xiang Bai Sha Xiang Political Department of the Guangzhou military region bamboo farm self No. 2 Patentee before: Guangzhou Dahua Desheng Thermal Management Science Technology Co.,Ltd. |